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python

Method Resolution Order (MRO) in new-style classes?

August 20, 2022 by Magenaut

In the book Python in a Nutshell (2nd Edition) there is an example which uses
old style classes to demonstrate how methods are resolved in classic resolution order and
how is it different with the new order.

Categories Python, Q&A Tags method-resolution-order, python Leave a comment

Add a prefix to all Flask routes

August 20, 2022 by Magenaut

I have a prefix that I want to add to every route. Right now I add a constant to the route at every definition. Is there a way to do this automatically?

Categories Python, Q&A Tags flask, python, routes Leave a comment

Error while installing lxml through pip: Microsoft Visual C++ 14.0 is required

August 20, 2022 by Magenaut

I am on a windows 10 machine and recently moved from python 2.7 to 3.5. When trying to install lxml through pip, it stops and throws this error message-

Categories Python, Q&A Tags lxml, pip, python, visual-c++ Leave a comment

How slow is Python’s string concatenation vs. str.join?

August 20, 2022 by Magenaut

As a result of the comments in my answer on this thread, I wanted to know what the speed difference is between the += operator and ''.join()

Categories Python, Q&A Tags list, python, string, string-concatenation Leave a comment

matplotlib: can I create AxesSubplot objects, then add them to a Figure instance?

August 20, 2022 by Magenaut

Looking at the matplotlib documentation, it seems the standard way to add an AxesSubplot to a Figure is to use Figure.add_subplot:

Categories Python, Q&A Tags matplotlib, python Leave a comment

Is there a simple way to delete a list element by value?

August 20, 2022 by Magenaut

I want to remove a value from a list if it exists in the list (which it may not).

Categories Python, Q&A Tags list, python Leave a comment

Pandas read_csv low_memory and dtype options

August 20, 2022 by Magenaut

When calling

Categories Python, Q&A Tags dataframe, numpy, pandas, parsing, python Leave a comment

Get a variable from the URL in a Flask route

August 20, 2022 by Magenaut

I have a number of URLs that start with landingpage and end with a unique id. I need to be able to get the id from the URL, so that I can pass some data from another system to my Flask app. How can I get this value?

Categories Python, Q&A Tags flask, python, url Leave a comment

Python dictionary: are keys() and values() always the same order?

August 20, 2022 by Magenaut

It looks like the lists returned by keys() and values() methods of a dictionary are always a 1-to-1 mapping (assuming the dictionary is not altered between calling the 2 methods).

Categories Python, Q&A Tags python Leave a comment

WebDriverException: Message: ‘chromedriver’ executable needs to be in PATH while setting UserAgent through Selenium Chromedriver python

August 20, 2022 by Magenaut

I’m a newbie in webscraping, I’m trying to modify my user agent using these lines :

Categories Python, Q&A Tags google-chrome, python, selenium, selenium-chromedriver, selenium-webdriver Leave a comment
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  1. michealSmith07 on Is there a way to dynamically refresh the less command?August 21, 2022

    That is a very nice post. I like this post.

  2. anonymous on Fix libwacom9 dependency issue when upgrade DebianJune 27, 2022

    saved my day!! Thanks for the help…

  3. sreedhar on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    Thanks its working

  4. saintnick on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    remove libwacom2 worked for me as well

  5. ranafoul on Fix libwacom9 dependency issue when upgrade DebianApril 22, 2022

    apt remove libwacom2 helped on kali 2022.01. gr8

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